Separable evacuation device

ABSTRACT

The present disclosure relates to the technical field of small household appliances and discloses a separable evacuation device. The separable evacuation device includes an evacuation module. The evacuation module includes a base, which is connected to an opening of a to-be-evacuated container; a vacuum pump, which is disposed on the base and configured to vacuum the to-be-evacuated container; a power supply assembly, which is connected to the vacuum pump and configured to supply power to the vacuum pump; and a control assembly, which is connected to the power supply assembly and the vacuum pump and includes a vacuum pressure switch. The vacuum pressure switch is configured to detect an air pressure value in the to-be-evacuated container and control the power supply assembly to perform one of supplying power to the vacuum pump or powering off the vacuum pump.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to a Chinese patent application No.201921389208.1 filed on Aug. 23, 2019, disclosures of which areincorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the technical field of small householdappliances, in particular to a separable evacuation device.

BACKGROUND

Vacuum anti-oxidation stirring technologies can reduce the oxidationdegree of food ingredients during the stirring process and lock thenutrition of the food ingredients, thereby bringing food or drink whichis fresher, more delicious and with the most retained nutrients.

The technical problem that those skilled in the art need to face is howto make the container automatically keep a specific air pressure value.

SUMMARY

The present disclosure is to provide a separable evacuation device whichcan automatically open or close to keep an air pressure value of ato-be-evacuated container not exceeding a preset value.

A separable evacuation device includes an evacuation module, where theevacuation module includes a base, which is connected to an opening of ato-be-evacuated container; a vacuum pump, which is disposed on the baseand configured to vacuum the to-be-evacuated container; a power supplyassembly, which is connected to the vacuum pump and configured to supplypower to the vacuum pump; and a control assembly, which is connected tothe power supply assembly and the vacuum pump and includes a vacuumpressure switch, where the vacuum pressure switch is configured todetect an air pressure value in the to-be-evacuated container andcontrol the power supply assembly to perform one of supplying power tothe vacuum pump or powering off the vacuum pump.

Further, the separable evacuation device further includes an interactionassembly connected to the control assembly, the interaction assembly isconfigured to display a status of the vacuum pressure switch and input asignal for controlling the vacuum pressure switch.

Further, the control assembly further includes a first electromagneticwave signal transceiver, a second electromagnetic wave signaltransceiver is disposed on the interaction assembly, and the firstelectromagnetic wave signal transceiver and the second electromagneticwave signal transceiver can mutually transmit electromagnetic wavesignals.

Further, an air port is disposed on the base, a solenoid valve isdisposed at the air port, and the solenoid valve is configured to beopened to communicate the to-be-evacuated container with outsideatmosphere or be closed to isolate the to-be-evacuated container fromthe outside atmosphere.

Further, the evacuation module further includes a sealing ring, which isdisposed at a connection position of the base and the to-be-evacuatedcontainer.

Further, a connection assembly is configured to be further disposedbetween the evacuation module and the to-be-evacuated container, one endof the connection assembly is detachably connected to the base, and theother end of the connection assembly is detachably connected to theto-be-evacuated container.

Further, the power supply assembly includes a rechargeable battery.

Further, the power supply assembly further includes a wireless chargingcoil, which is connected to the rechargeable battery and is configuredto charge the rechargeable battery.

Further, the control assembly further includes a power switch, which iselectrically connected to the power supply assembly and is configured tocontrol an operation of the power supply assembly or stop the operationof the power supply assembly.

In the separable evacuation device provided by the present disclosure, acontrol assembly controls a power supply assembly to supply power to avacuum pump, where the control assembly includes a vacuum pressureswitch, and an air pressure value in the to-be-evacuated container isdetected by the vacuum pressure switch and compared with a turning onand off threshold of the vacuum pressure switch. If the detected airpressure value is higher than the turning on and off threshold, thevacuum pressure switch is turned on, the power supply assembly suppliespower to the vacuum pump, and the vacuum pump is turned on to evacuatethe to-be-evacuated container; if the detected air pressure value islower than or equal to the turning on and off threshold, the vacuumpressure switch is turned off, the power supply assembly stops supplyingpower to the vacuum pump, and the vacuum pump is turned off to stopevacuating the to-be-evacuated container. The separable evacuationdevice can automatically open or close to keep the pressure value of theto-be-evacuated container not exceeding a preset value.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic view of an evacuation module according to aspecific embodiment of the present disclosure;

FIG. 2 is an exploded view of an evacuation module according to aspecific embodiment of the present disclosure; and

FIG. 3 is a schematic view of a separable evacuation device according toa specific embodiment of the present disclosure.

REFERENCE LIST

1 base

2 vacuum pump

3 control circuit board

4 vacuum pressure switch

5 power switch

6 solenoid valve

7 rechargeable battery

8 wireless charging coil

9 sealing ring

101 first connection pipe

102 second connection pipe

11 evacuation module

12 connection assembly

13 to-be-evacuated container.

DETAILED DESCRIPTION

The technical solutions of the embodiments of the present disclosurewill be further described in detail below in combination with thedrawings. As shown in FIGS. 1 to 3, this embodiment provides a deviceincluding an evacuation module 11 and an interaction assembly. Theevacuation module 11 includes a base 1, a vacuum pump 2, a power supplyassembly and a control assembly, the base 1 is connected to an openingof a to-be-evacuated container 13, the vacuum pump 2 is disposed on oneend of the base 1 facing away from the to-be-evacuated container 13, andan evacuation port of the vacuum pump 2 is communicated with theto-be-evacuated container 13. The control assembly is electricallyconnected between the vacuum pump 2 and the power supply assembly andincludes a control circuit board 3 and a vacuum pressure switch 4connected to the control circuit board 3. The vacuum pressure switch 4is electrically connected between the power supply assembly and thevacuum pump 2, and a detection portion of the vacuum pressure switch 4is communicated with the to-be-evacuated container 13. In thisembodiment, the controller may be a centralized or distributedcontroller, for example, the control circuit board 3 may be a separatesingle-chip microcomputer, such as an STM32 single-chip microcomputer,or may be formed by multiple distributed single-chip microcomputers, acontrol program may be run in the single-chip microcomputer to controlthe vacuum pressure switch 4 and other components to achieve thefunctions.

Specifically, a turning on and off threshold of the vacuum pressureswitch 4 is adjusted by the control circuit board 3, and the vacuumpressure switch 4 detects an air pressure value in the to-be-evacuatedcontainer 13 and compares the detected air pressure value with theturning on and off threshold. If the detected air pressure value ishigher than the turning on and off threshold, the vacuum pressure switch4 is turned on, the power supply assembly supplies power to the vacuumpump 2, and the vacuum pump 2 is turned on to evacuate theto-be-evacuated container 13; if the detected air pressure value islower than or equal to the turning on and off threshold, the vacuumpressure switch 4 is turned off, the power supply assembly stopssupplying power to the vacuum pump 2, and the vacuum pump 2 is turnedoff to stop evacuating the to-be-evacuated container 13. In this way,when the air pressure value in the to-be-evacuated container 13 changes,the vacuum pressure switch 4 can automatically control the start andstop of the vacuum pump 2 according to the relationship between thedetected air pressure value and the turning on and off threshold,ensuring that the air pressure value in the to-be-evacuated container 13is not greater than the turning on and off threshold of the vacuumpressure switch 4.

Further, the control assembly further includes a power switch 5connected to the control circuit board 3 for controlling the powering onand off of the control circuit board 3, that is, controlling thepowering on and off of the evacuation module 11.

Further, the evacuation module 11 further includes a solenoid valve 6connected to the control circuit board 3, an air port is disposed on thebase 1. The solenoid valve 6 is disposed at the air port, and can beopened to communicate the to-be-evacuated container 13 with an outsideatmosphere or closed to isolate the to-be-evacuated container 13 fromthe outside atmosphere. Specifically, when the to-be-evacuated container13 is in an evacuation or pressure holding state, the solenoid valve 6is in a closed state, and when the vacuum in the to-be-evacuatedcontainer 13 needs to be broken, the solenoid valve 6 is opened.

Further, the evacuation module 11 further includes a sealing ring 9,which is disposed on one end of the base 1 connected to theto-be-evacuated container 13 and is configured to keep a pressuredifference between an inside and an outside of the to-be-evacuatedcontainer 13.

Alternatively, the power supply assembly includes a rechargeable battery7 and a wireless charging coil 8 connected to the rechargeable battery7. In this embodiment, the wireless charging coil 8 utilizes anelectromagnetic induction principle to receive an electromagnetic signalemitted by an external wireless charger and convert the electromagneticsignal into a current to charge the rechargeable battery 7, which is anexisting well-known technology and will not be repeated here.

Alternatively, the vacuum pump 2 is communicated with theto-be-evacuated container 13 through a first connection pipe 101.Specifically, the evacuation port of the vacuum pump 2 is connected toone end of the first connection pipe 101, and the end of the firstconnection pipe 101 facing away from the evacuation port is communicatedwith the to-be-evacuated container 13.

Further, the separable evacuation device according to this embodimentfurther includes the interaction assembly. The interaction assemblyincludes an input component for an operator to input an instruction andan output component to display an instructed status. The interactionassembly can receive and display a signal from the control circuit board3, and can also transmit an input signal to the control circuit board 3.

Alternatively, a first electromagnetic wave signal transceiver isdisposed on the control circuit board 3, a second electromagnetic wavesignal transceiver corresponding to the first electromagnetic wavesignal transceiver is disposed on the interaction assembly, and thefirst electromagnetic wave signal transceiver and the secondelectromagnetic wave signal transceiver mutually transmitelectromagnetic wave signals to transmit an instruction and a feedbackresult.

Alternatively, the input component is a mechanical key or a virtual key,and the output component is a display screen.

Alternatively, the separable evacuation device further includes aconnection assembly 12, the connection assembly 12 is disposed betweenthe base 1 and the to-be-evacuated container 13, and the connectionassembly 12 includes a first end connected to the base 1 and a secondend connected to the to-be-evacuated container 13. Specifically,according to different opening shapes and opening sizes of theto-be-evacuated container 13, a connection assembly 12 having the secondend with a corresponding shape and size may be adopted. Alternatively,the first end and the second end are detachably connected, and accordingto different opening shapes and opening sizes of the to-be-evacuatedcontainer 13, the first end may be connected to the second end with thecorresponding shape and size.

What is claimed is:
 1. A separable evacuation device, comprising anevacuation module, wherein the evacuation module comprises: a base,which is connected to an opening of a to-be-evacuated container; avacuum pump, which is disposed on the base and configured to vacuum theto-be-evacuated container; a power supply assembly, which is connectedto the vacuum pump and configured to supply power to the vacuum pump;and a control assembly, which is connected to the power supply assemblyand the vacuum pump and comprises a vacuum pressure switch, wherein thevacuum pressure switch is configured to detect an air pressure value inthe to-be-evacuated container and control the power supply assembly toperform one of supplying power to the vacuum pump or powering off thevacuum pump.
 2. The separable evacuation device according to claim 1,further comprising an interaction assembly connected to the controlassembly, wherein the interaction assembly is configured to display astatus of the vacuum pressure switch and input a signal for controllingthe vacuum pressure switch.
 3. The separable evacuation device accordingto claim 2, wherein the control assembly further comprises a firstelectromagnetic wave signal transceiver, a second electromagnetic wavesignal transceiver is disposed on the interaction assembly, and thefirst electromagnetic wave signal transceiver and the secondelectromagnetic wave signal transceiver mutually transmitelectromagnetic wave signals.
 4. The separable evacuation deviceaccording to claim 1, wherein an air port is disposed on the base, asolenoid valve is disposed at the air port, and the solenoid valve isconfigured to be opened to communicate the to-be-evacuated containerwith outside atmosphere or be closed to isolate the to-be-evacuatedcontainer from the outside atmosphere.
 5. The separable evacuationdevice according to claim 1, wherein the evacuation module furthercomprises a sealing ring, which is disposed at a connection position ofthe base and the to-be-evacuated container.
 6. The separable evacuationdevice according to claim 1, wherein a connection assembly is configuredto be further disposed between the evacuation module and theto-be-evacuated container, one end of the connection assembly isdetachably connected to the base, and the other end of the connectionassembly is detachably connected to the to-be-evacuated container. 7.The separable evacuation device according to claim 1, wherein the powersupply assembly comprises a rechargeable battery.
 8. The separableevacuation device according to claim 7, wherein the power supplyassembly further comprises a wireless charging coil, which is connectedto the rechargeable battery and is configured to charge the rechargeablebattery.
 9. The separable evacuation device according to claim 1,wherein the control assembly further comprises a power switch, which iselectrically connected to the power supply assembly and is configured tocontrol an operation of the power supply assembly or stop the operationof the power supply assembly.